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Need circuit board

Circuit board not working

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I have a Brevelle 800 toaster oven that starts, but does not heat up. What part needs replacing?


There is a thermal fuse that breaks power to the heating elements if it gets too hot (somewhere around 173 C. I replaced mine with an identically rated fuse and it was good for a week until I tried to cook twice in succession. I then replaced the fuse with one that trips at around 190C and it's been good for 4 months now. The fuse costs about $6 on ebay (shipping included) and takes about an hour to replace.

Jul 18, 2014 | Breville BOV800XL 1800 Watts Toaster Oven...

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How I Fixed A Break


My TLWTOB6 Salton Toastmaster Lightwave broke, and I fixed it. It had still turned on the display OK and pretended to run, but neither the top nor the bottom lamps would turn on. Also, it made no clunk sound that it would usually do when turning on the lamps.
I took it apart (keep careful track of which screws go where, and there are lots of sliding tabs to put pieces together). I examined the bottom of the circuit board holding the big electronics, and saw discoloration; evidence of heat damage. I wiggled a wire near by, and its quick connect tab came off the circuit board; it hadn't been soldered right at the factory. So, I resoldered it (hope my job was done better), and put it all back together, breaking and resoldering a data cable in the process -_-
So, it works fine now, and hopefully will last a while. By the way, the web address in the manual, www.toastmaster.com, doesn't work any more, and the URL is not associated with any IP address right now. Also, there appears to be no fuse inside the toaster oven.

on Aug 17, 2010 | Toastmaster TLWTOB6 Lightwave Toaster Oven...

2 Answers

What part needs to be replaced when the lcd and controls work but no heat?


Most likely suspects in this scenario would be the heating element or the temperature sensing rod. Not sure what the sensing rod setup on this oven looks like, but it is generally a few inches long, similar diameter to a charging cable for your phone, attached to the back wall of the oven and sticking out directly toward the oven door. If it goes bad, the oven may think it has reached the set temperature and turn off, but generally, it is the opposite (it allows the oven to get too hot). My guess is heating element, but the sensor generally costs a lot less to replace, though maybe not with a small toaster oven. Good luck!

Jul 18, 2014 | Breville BOV800XL 1800 Watts Toaster Oven...

1 Answer

The toast part works but the bake and broil does not work , the blue light does not come on and no heat is produced


We've got the same problem and I just took ours apart.

Bad news: I'm pretty sure it's the circuit board. It's not the timer knob, and I'm almost positive it's not the upper selector knob. Most of the components on the circuit board are only used for the "bake" mode to regulate temperature. The board is marked, "128301 Timer PCB". I looked into whether one can buy a replacement board from Kitchenaid, but it's not on their parts list. If I had to guess, I'd say it's the relay on the board, but it's only a guess. Shoddy components, plus it gets hot in there and "bakes" the board. The little fan in the side isn't part of the "convection." It's for cooling off the circuit board. Don't laugh.

Even worse, next to the thermostat on ours, there's a little rubber insulator that's burnt to a crisp. The connection under this insulator was also loose. It hasn't affected functionality, but it doesn't instill confidence in the design. Kind of scary. Unplug this unit when not in use!

Only a one year warranty. I think we now have an expensive toaster.

Jul 24, 2011 | KitchenAid KCO1005OB 1400 Watts Toaster...

1 Answer

The timer doesnt't ding, and the oven does not turn off, ever. had to unplug. i bought at xmas, and don't use for toast, only to bake like muffins, etc.


Hello :

You need to check the fuse . If the fuse is OK , then the proplem will be with the power PCB [ printed circuit board ] . You need to call for repairing if the problem is with the PCB .

regards .

please rate !

Mar 28, 2010 | Black & Decker CTO649 Toaster Oven with...

1 Answer

Toaster button does not latch.


The buttons latch is actually an electromagnet that is engaged and disengaged by a small timer located on the toasters circuit board. The most likely reason why the button will not stay latched is a bad connection to the magnet. Unplug the toaster and open the right side panel by removing the machine screw located on the underside of the toaster. You will notice a pretty simple circuit board with 2 (usually red) wires leading to the magnet. If you have trouble locating the magnet, push the "toast" button and watch out for the component it butts up too. Because the wires attached to the magnet are soldered firmly to the circuit board, the poor connection is usually at the magnet. Gently push the wires towards the magnet to ensure a good connection. To test, plug the toaster in, being sure to remove any tools or loose components from the toaster, and push in the button so see if it latches. If it does latch, open the door to disengage and unplug the toaster before reassembling. If it does not latch, you may need to replace the magnet.

Jan 11, 2010 | Black & Decker TRO210 Toaster Oven with...

2 Answers

BOTTOM ELEMENT DOES NOT WORK


If the top element is working, then it is either the element, the wiring harness , or the control board.

Since both elements are controlled through the same temperature probe, then the temp. probe should be OK.

The heating element must be removed and tested using a multimeter.

The part is tested disconnecting wiring from element contacts, setting a multimeter to read impedance at Rx1, and reading Ohms on element contact.
If the circuit is open (no continuity and infinite Ohms value), then the element has blown and must be replaced.


If the element has continuity, test the wiring harness, then replace wiring harness or control board.

All the test must be done by a trained repairer, strictly observing all health and safety rules.

Regards.

Oct 21, 2009 | DeLonghi EO1238 Toaster Oven with...

1 Answer

''start'' toast button no longer works on my kenmore toaster oven


Salton Model KTES8 toaster oven disassembly and repair
DISASSEMBLY
Remove two rear feet, each held by one screw.
Remove 8 screws holding back on.
Twist AC line cord grommet 90 degrees and slide off back.
Remove one screw on inside 2-1/4" from top on control side next to bell
(hard to see - hidden by wire insulation).
Remove 4 screws from bottom of wraparound case.
Push up case about 1/4" at the front to disengage locking tabs, then
gently slide back and spread sides of case, lift wraparound lip over the edge
it screws into, and then work the case towards the back until it easily
slides off.
Remove 3 knobs from right hand control panel (use flat blade of dinner
knife to gently pry on one side, then the other).
Remove screws that were hidden by knobs.
Remove two screws holding plastic control panel.
Remove 4 long screws and spacers holding circuit boards to plastic control
panel.
Remove plastic control panel.
Move circuit boards forward so they can be accessed. (be careful that after
disengaging the temperature control shaft from the circuit board that you
do not twist either the temperature control shaft or the knob shaft - they
will be reassembled by putting the shaft back into the slot.)

REPAIR
ZD1 Zener diode shorted - replace with 1N4742A (12V, 1W, NTE 142A, $0.99)
REASSEMBLY
Reverse ASSEMBLY instructions

Mar 21, 2009 | Kenmore KTES8 Toaster Oven with Convection...

2 Answers

Toast button sticks and sometimes does not function. Sometimes it will work if it is jiggled.


I had the same problem which was getting worse. Eventually I took the oven apart by removing the feet, shell and front. Then I removed the circuit board on the front panel which has all the switches on it. We never use the "Defrost" function, so using a soldering iron, I swapped the "Toast" switch with the "Defrost" switch. The Toast function now works normally. I plan to get some spare switches for the next time one of these goes wrong. While I had one of them out I checked it out and a Panasonic P/N EVQ-PAE05R available from Digi-Key P/N P12192S-ND looks like it will do the trick.

Oct 20, 2008 | Krups FBC112 1600 Watts Toaster Oven with...

4 Answers

Cuisinart toaster oven modele no.TOB-30BWC, serial no.50421.


The contacts for these toasters fail. The plasic cam that depresses the contacts also can melt. The design is poor and no replacement parts are available. When selecting a setting, if the selection is not exactly perfect, the contacts arc and eventually fail. Unless cuisinart changes the selection cam to a solid state or relay, this failure will continue to happen during normal use. If your unit works properly do not switch the function setting while heating, this will cause the contacts to arc and erode the contact surface. This posting is applicable to the TOB-30BC, TOB-30BCC and probably all TOB-30XXX models.

Dec 26, 2007 | Cuisinart TOB-30 Toaster Oven with...

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